| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.fury.io; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.channels.WritableByteChannel; |
| |
| /** |
| * A helper class to track the size of allocations. Writes to this stream do not copy or retain any |
| * data, they just bump a size counter that can be later used to know exactly which data size needs |
| * to be allocated for actual writing. |
| */ |
| public class MockWritableChannel implements WritableByteChannel { |
| private boolean open = true; |
| private int totalBytes; |
| |
| @Override |
| public int write(ByteBuffer src) { |
| int remaining = src.remaining(); |
| src.position(src.limit()); |
| totalBytes += remaining; |
| return remaining; |
| } |
| |
| public int totalBytes() { |
| return totalBytes; |
| } |
| |
| @Override |
| public boolean isOpen() { |
| return open; |
| } |
| |
| @Override |
| public void close() { |
| open = false; |
| } |
| } |